Method and apparatus for defective pixel detection based on...

Details Method and apparatus for defective pixel detection based on... Method and apparatus for defective pixel detection based on...

2011-04-05

2011-04-05

Ho, Tuan (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

Reexamination Certificate

active

07920186

ABSTRACT:
A bad pixel detection method and module which provide a quick-test and a full-test for bad pixel detections in an image. The quick-test tests a current pixel to one and only one good neighbor having been previously tested. The quick-test is optimized by exploiting weaknesses in the human visual system especially for red and blue colors. More lenient thresholds can be used for the blue color compared to thresholds for the red and green colors. Moreover, the full-test is constructed and arranged to detect bad pixel clusters in a kernel.

REFERENCES:
patent: 6683643 (2004-01-01), Takayama et al.
patent: 7443433 (2008-10-01), Hara
patent: 2005/0248671 (2005-11-01), Schweng
patent: 1289309 (2003-03-01), None
patent: 1594308 (2005-11-01), None
patent: 1605403 (2005-12-01), None
patent: 2004004319 (2004-01-01), None

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